636320

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:153

約数の個数: 48

約数和(自身を含む): 1555848

約数和(自身を除く): 919528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 97, 160, 164, 194, 205, 328, 388, 410, 485, 656, 776, 820, 970, 1312, 1552, 1640, 1940, 3104, 3280, 3880, 3977, 6560, 7760, 7954, 15520, 15908, 19885, 31816, 39770, 63632, 79540, 127264, 159080, 318160, 636320]

約数ペア:

[(1, 636320), (2, 318160), (4, 159080), (5, 127264), (8, 79540), (10, 63632), (16, 39770), (20, 31816), (32, 19885), (40, 15908), (41, 15520), (80, 7954), (82, 7760), (97, 6560), (160, 3977), (164, 3880), (194, 3280), (205, 3104), (328, 1940), (388, 1640), (410, 1552), (485, 1312), (656, 970), (776, 820)]